Ventilator



UNITED STATES PATENT OFFICE.

'HENRY CASE, OF CINCINNATL'OHIO, vASSIGNOR,TO THE CINCINNATI STAMPING COMPANY,`OFCINCINNATI, OHIO, A CORPORATION OF OHIO.

VENTILATOR. f

Specification orf Letters Patent.

Patented Apr. 11, 1922.

Application filed January 18, 1919. Serial No. 271,789.

To all whom t may concern.'

Be it known that I, HENRY M. CASE, a citizen'o't' the United States` and a resident of Cincinnati, inthe count-y ot' Hamilton and State of Ohio, have invented certain new and useful Improvements in Ventilators, of which `the 'following is a speciiication. l

, Y My invention relates to ventilating apparatus, and its object is. to` provide a ventilator to be placed in the loiver part of a ivindonT under the raised loiver sash so that this lventilator can be readily adjusted to Windows ot' different ividths and may also be readily adjusted to admit a greater or less amount of air. to `permit ot use of the ventilator in Windows having the lower sashes o1 various thicknesses so that the 'ventilator will remain in place `Without rattling.

My invention consists in the combination of parts and inthe details of construction and arrangement of parts as `Will hereinafter 'be more fully described and claimed.

In the drawing:

Fig. 1 is a perspective view of part ot a Window showing my improved ventilator installed therein;

Fig. 2 is an outside or rear elevation of the-same;

Fig. 3 is a vertical cross-sectionV on a pla-ne corresponding yto the line 3 3 of Fig. 2;

fFig. 4 is a horizontal cross-section on a plane corresponding to the line 4 4 of Fig. l; and

Fig. 5 is a detail perspecti-vevieiv of one ofthe end adjusting plates.

As 'I prefer ito construct my invent-ion, it comprises the main plate 1 Y'and ythe eXtensible plate 2. These plates standiipright vvi'ththe plate 2 behind or `outside the platel lgsaid plate 2 havingalong its loiver edge throughout 'the length 'of the plate 2. At

' Vthe :top the plate 2 has'the forwardly eX- tended vange `5 with the u'pwardlyextended 'rib 6 'along the front edge thereof. The left-hand lend of the plat'ef2 from its upper flange f5 to its lower iiange l3 'is Vmerely reinforced 'by 'a hem"`or fb'ea'd 7 turned back on the outside thereof.

The maia plate l is f generaifforrmation similarto the plate E2 just described; hav- A yfurther object *isl ing the loiver forwardly extended flange S 'ivith upturned ifront rib 9 lying above and inside the flange 3 and rib 4l of the plate 2. And at the `top the plate 1 has the forwardly extended flange 1() lying under the flange 5 of the plate 2; and extending up in front of the rib 6 of this upper flange 5, and` turned back thereover and down therebehind is the hooked rib 11. rl`he plate 2 is thus held to slide longitudinally behind the main plate 1. The right-hand end of the main plate 1 has a bead 12 turned over on its iront side and is further reinforced by a rib or brace 13 ruiming from the upper fiange 10 to the lower flange 8 to `which its respective ends are attached, and having a iiange 14 fitting under the bead 12. These parts are preferably attached together by solder.

The left-hand end ot the plate 1 and the.

right-hand end of the plate 2 are stiffened and mace to have suiiicient front-to-rear width to bear properly against the Window casing by attaching thereto en'd pieces 15 ot V-shaped cross-section; one leg ot' the V running at right angles to the respective plate 1 or 2, and having along its rear edge an S-shaped crimp 17 (Fig. 4l) with its rearmost fold opening toivard Athe respective end of the plate 1 or 2 and receiving said end in said fold; this vcrimp being tightly compressed and the parts being soldered together. The other leg 1S of the V extends atapproximately forty-five degrees to the plate 1 or 2 from its junction with the forward edge of the part 16 and has its rear edge soldered tothe front side of the respective plate 1 or 2. The ytop and bottom ends of the part 16 of each end piece '15 are attached to the forwardly extended Vflanges 5 and?) or 10 and 8, as the case may bei` this being accomplished by turning up short lugs 19 on the ends of the respective flanges, which 'lugs lie inside the parts 16 and are soldered thereto. By this construction, the ends of vthe device are made very substantial. y

As T. prefer to malte the device. these ends are about an4 vinch wide. But the lower sas'hes of windowsvary in thickness from about the width of these ends up to vtivo or three inches. Therefore` the space between the stops that guide'the sash would often be too widefor my ventilator to be effectively supported in upright Yposition at the ends lilith the extensible plate f2 ol" about the as it should be by Fitting` rather snugly between the inner and outer stop ol,t the window. Il? it does not inalie ell'ective contact at the end` there is a tendency tor it to rattle under distui'bancesn as, for instance`r u'lu'fn the ivind is blowing'. l provide 'ior adjustli my Vltllllol to these spaces by providinnan end adjusting plate E30 vvliicln :is l prefer to inalie it, is ot angular cross-section having' a wider member 2l and a. narrmver member 22; the liornier being' :ulapted to ,lic up along` the outer surtace oli the part lo at the end oil the ventilator and the narroiver member Q2 lyingoutside or to the rear and extending' in across the rear side ot the von" tilator a short distance. rlChis plate is attached to the ventilator end, as here showny by means of a bolt 23 passing` through a slot 2li in the member 2l of the plate 2O and passing in tirough the end-piece l5 and through a slight boss 25 formed in the inner leg' 1 8 oiL the lf"- shaped end piece 15 Where the bolt receives a Wing' nut 26. Preferably the slot 2li opei'is through the front edfe of the member E21 so that the adjusting plate may be readily slipped'on or oft ot the bolt 23V thus obviatinn the complete removal ol'l the bolt in orderto attach the adjusting' plate. The inturned rear member 22 which, as here showin preterably doubled upon itsellito rein'toi'ee the cntire adjusting plate, in addition to thus providing' the reinforcement ail'oids a more extended surface to bear against the inner or y 'front side ot the outer or rear winden7 stop 27 (Fig. 1l) While the 'front edge ol' the ventilator end l5 bears against the rear side the inner or tront stop 28. K The lett-hand end part oit the main plate l is provided With a plurality ol pertorations 29, these being, as l prefer to make the ventilator, about fiif'e-eights inch in diameter and spaced about one inch from center to center; this arrangement ol" pei'i'iorat-ions ow ciipyinpr about lia'l't the area ot' lthe main plate 'l and beginning a. short distance from the left-hand end. lt inani'tfesi howeveu'q that the sir/ie .find spacing' ot these pei'toi'ations may be varied :is ivell as may be the extent of: the pei"l"oi'ute jl part oli fthe plate,

length as the main these perfor yi Wilhsot course, be covered by the plaie When the ventilator adjusted toits s condition, This completely olor-*fed coA is desirable. for packing and storing' the ventilators; it is seldom that'v a Winden' ivould be provii'led with a ventilator and requii'e the ventilator to be so short. As the ventilator is extended to icitvindoivsof usual` widths, the perioi'atioiis in additional numbers will be uncovered. rihereoi'e.l the extension or' the ventilator to tit Windows automatically provides' additional ventilating area some .'hat proportion tothe sitze of the Window.' This is desirable since a Y very ,narrow Window usually opens into a vcompai'atively small room which would require not so much area of ventilation inlet; whereas the larger winden', which is grenci'ally found in a larger room, should he provided with a ventilator having much greater inlet area 'for the \f'entilation ot such larger room.

lit the air is permitted to pass directly into the 'i'ooin through the pertora-tioiis 2i), it causes drafts which are injurious to the occupants oit' the room; and also there is grenerally an objectionable amount oit' dust, `soot and other impurities deposited in the room by such directly entering` air.l Fine mesh screens placed in the Ventilating openings guard against 'these objectionable results to a certain extent, but they largely nullily the if'entilating effect which the devices of that kind are designed to produce. Also such directly opening Ventilating inlets Will admit the rain` especially when blown by the Wind; whether the opening be screened or not.

l obviate these disadvantages without objC-.f'tionably minimizing; the desired rentilat .ing effect by providing' across the 'front ot the main plate lthrouojhout the area that has the pertorations the inverted `chiite 30 which comprises tie liront part'f'li attached to the plate l just above the loivci' flange 8 thereof, and extending' upwardly and incliniiig' inwardly away from said plate l at an angle oit bet-Ween thirty and forty- `tive degne-es9 preferably; and the side parts 32 joining); the front part El along its lateral edges and preferably being' intep'ral there- With and extending the full height thereof and extendingr back with horinontal top edges, and being fastened to the front of the plate l at the lateral terminations ot the area-'having' the perforations Q9. YThe at tachinent of these parts 3l. and .32 to the plate i is prei'erably eilected by turning' out narrow flanges 3B and 34T, respectively. which are soldered to the liront surface oit the plate l.. v

This chute, thus opening upwardly and with its inclined liront part Ell, dcfieets the air currents entering through the perforations Q9 upwardly ivhei'e they ivill not directlj,v Contact withV the occupants of the rooma but will spread gfrailually 'thi'ouglioiit the upper part ol the i'ooin andfdescend in less concentrated 'form to properly modify the temperature and increaseV the pui'itv f the atmosphereot the room. Also ilustfs-4 oi' rain entering'throug'h the perforations 29 and strikingr the sidesotl the chute 30 ivill Y be retarded and their distribution' through-v out the room willV belargely prevented. Y

As before stated. the Vmaximum capacity of the Vventilator is determined automaticallyby the saine means that effect the adjustment of the ventilator to the lWindow of a given Width. But the amount ofrventilation delio and said plates being adapted to be inserted` 1n a window m the space normally occup1ed substantially S-shaped cross-section receiv-Y ing the end of said plate in one of the :folds of said crimp, and the other member of said.

end piece inclining back against the adjacentsurface of the plate and being secured thereto.

4. VIn a ventilator, an upright plate, an up right end piece having two members disposed so that it is of substantially V-shaped cross-section, one member of said end piece having a crimp along its free edge of substantially S-shaped cross-section receiving the end of said plate in one ot the folds of said crimp, and the other member of said end piece inelining back against the adj acent surface of the plate and being secured thereto', an adjustingvplate lying against the outer surface of said member that has the crimp, and having a transverse slot, and a bo-lt passing through said slot and through both members of said end piece, and clamping means on said bolt adjacent to said'inclined part of said end piece, said adjusting plate being v adapted to be adjusted transversely of said end of said plate, for the purposes set forth.

5. In a ventilator, the combination oftwgo plates, each having forwardly extended top and bottom flanges and the bottom flanges raving upwardly extended beads, the flanges and bead of one of said plates lying within the flanges and bead of the other plate, and the upper flange of said one of said plates having an upwardly and backwardly and downwardly extended hooked flange hooking over the upwardly extended bead of the upper flange of the other plate, whereby said plates are slidable upon each other, one of saidplates comprising ventilating means.

6. In a ventilato-r, the combination of two plates, each having forwardly extended top and bottom flanges and the bottom flanges having upwardly extended beads, the flanges and bead of one of said plates lying within the flanges and bead of the other plate, and

the upper flange of one of said plates having an upwardly and `backwardly and down;- wardly extended hooked flange hooking over the upwardly extended bead of the upper flange of the other plate, whereby said plates are slidable on each other, and an upright end piece having two members disposed so that it is of substantiallyl V-shaped cross-section, one member of said end piece havingr a crimp along its free edge of substantially S-shaped cross-section'receiving the end of one of said plates in one of the folds of said crimp, and the other member of said end piece inclining back against the adjacent surface of said plate and being secured thereto.

CLARENCE PERDEW, JAMES N. RAMSEY. 

